Suppose there are two ISPs providing Wi$-$Fi access in a particular caf$,$ with each ISP operating its own AP and having its own IP address block. a$)$ Further suppose that by accident, each ISP has configured its AP to operate over channel $11.$ Will the $802\mathrm{.}11$ protocol completely break down in this situation? Discuss what happens when two stations, each associated with a different ISP, attempt to transmit at the same time.